RZR XP Turbo S4 Cab-Only Asylum Cage System available with V or no intrusion bar. This cage completely changes the lines of your Polaris RZR XP Turbo S4. Made of 1.75 DOM steel tubing and MIG welded. With the short cab it's easily modifiable through the addition of a rear bumper. Easy install with no drilling necessary and comes with all necessary hardware. We also offer a matching aluminum roof with or without a light pocket.